1.Role of Th17 Cells and Intestinal Flora in Pathogenesis of Inflammatory Bowel Disease
Zelan LU ; Yuqi QIAO ; Zhihua RAN
Chinese Journal of Gastroenterology 2015;(10):619-621
Inflammatory bowel disease(IBD)is an autoimmune disease and its etiology has not yet been clarified. Dysregulated immune responses resulted from complex interactions among genetic factors,intestinal flora and environmental cues have been considered as the etiology of IBD. Recently,the relationship between Th17 cells and IBD has become a hotspot of study,and more and more studies showed that Th17 cells and their related cytokines regulated by intestinal flora contributed to the pathogenesis of IBD. This article reviewed the role of Th17 cells and intestinal flora in the pathogenesis of IBD.
2.A Controlled Study of Paroxetine and Amitriptyline in the Treatment of Primary Fibromyalgia Syndrome
Jian XU ; Yuqi CHENG ; Zhaoping LU
Chinese Mental Health Journal 2002;0(08):-
Objective: To compare the efficacy of paroxetine and amitriptyline in the treatment of primary fibromyalgia syndrome.Methods:46 out- and in-patients with primary fibromyalgia syndrome were randomized to two groups and treated respectively with amitriptyline 25mg~50mg per day and paroxetine 10mg~20mg per day. The Visual analogue scales(VAS) was used to evaluate the efficacy and adverse effects were recorded at baseline, month 1 and month 3.Results:In both groups pain was alleviated with statistical significance after 1 month of treatment. However the efficacy of amitriptyline and paroxetine was not statistically significant at different time points. The occurrence of adverse effects in paroxetine group was less than in amitriptyline group and the difference was statistically significant, especially dry mouth and palpitation.Conclusion:Paroxetine is as effective as amitriptyline in the treatment of primary fibromyalgia syndrome but with a better safety profile.
3.Determination of Chloride in Water by Automatic Potentiometric Titrimeter
Xinhong PAN ; Lan SUN ; Yuqi LU
Journal of Environment and Health 1992;0(02):-
0.05). The titrimetric determination of standard solution containing different levels of chloride showed recovery rates of 98.0%~103.7%, relative standard deviation was 0.16%. Conclusion Automatic potentiometric titration was easy to grasp, rapid and accurate, which was a new analytical method worthy to be applied extensively.
4.Diagnosis and treatment of occult indirect inguinal hernia (A report of 60 cases)
Peizhong SHANG ; Jingzhang LIU ; Yuqi LU
Chinese Journal of Minimally Invasive Surgery 2001;0(05):-
Ojective To enhance the ability of diagnosis and therapy for occult indirect inguinal hernia. Methods Surgical exploration was performed for patients highly suspected with occult indirect inguinal hernia based on clinical manifestations and physical examinations in the initial stage. At present, herniography was used to confirm the diagnosis. High ligation of the hernial sac, non-mesh methods of open groin hernia repair or tension-free inguinal hernia repair was performed for the patients. Results Forty-four cases were given surgical exploration in the initial stage and 41 cases were confirmed and treated by operation. Misdiagnosis was found in 3 cases and surgical exploration revealed no sign of disease. Relapse occurred in two cases within 5 years. Nineteen out of 30 patients were confirmed by herniography in the last five years and operated on. There was no false-positive herniogram in this series. Follow-up evaluation of the patients showed disappearance of preoperative symptoms. Groin hernia has not recurred so far. Conclusions The ability of diagnosis for occult indirect inguinal hernia can be enhanced by herniography. Blind surgical exploration can be reduced. Herniography is a safe, reliable and practical diagnostic procedure.
5.Research Idea and Mode Exploration for Translational Medicine with Chinese Medicine Characteristics
Huayang CAI ; Chuanjian LU ; Yuqi YANG ; Hui LI
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(5):982-986
This article started from the characteristics of translational medicine and Chinese medicine , analyzed the differences between the development of translational medicine and Chinese medicine , and indicated that the path and mode in which Chinese medicine develops translational medicine should adapt to characteristics of Chinese medicine . According to the translational medicine path of modern medicine , this article raised several translational paths and a multidimensional-shape translational mode for Chinese medicine , and discussed the enlightenment for research of the National Clinical Research Base of Chinese Medicine .
6.Effects of siltuximab on the interleukin-6/Stat3 signaling pathway in ovarian cancer
Yuqi GUO ; Ping LU ; Zhenfeng DUAN ; Zhan ZHANG
Chinese Journal of Obstetrics and Gynecology 2010;45(11):854-859
Objective To study the effects of siltuximab on the interleukin-6 (IL-6)/signal transducer and activator of transcription 3 (Stat3) signaling pathway in ovarian epithelial carcinoma.Methods (1) Expressions of IL-6 in ovarian cancer patient specimens were assessed by immunohistochemistry.(2) Expression of phosphorylation Stat3 (pStat3) protein in siltuximab and IL-6 treated SKOV3 cell lines was determined by western blot, and expression levels of Stat3-induced bcl-XL,MCL-1, survivin, in siltuximab treated SKOV3/TR and CAOV3/TR cells lines were also determined by western blot.(3) Real-time image analysis was used to study the nuclear translocation of pEGFP-Stat3 fusion protein in ovarian cancer cell line SKOV3-pEGFP-Stat3 treated with siltuximab and IL-6.(4)Paclitaxel sensitivity in siltuximab treated SKOV3/TR and CAOV3/TR cell lines were assessed using the methyl thiazolyl tetrazolium (MTT).The 50% inhibiting concentration ( IC50 ) was defined as the paclitaxel concentration required to decrease the A490 value to 50%.Results ( 1 ) There were significantly difference in IL-6 staining density and the positive rate of IL-6 protein stained among the metastatic, and drug-resistant recurrent tumors,and matched primary tumors [69%(18/26)] vs.77% (20/26)vs.23% (6/26), P<0.05].(2)A clear increase in Stat3 phosphorylation levels was observed in the IL-6-treated SKOV3 cell lines as compared to the SKOV3 cell lines.When the IL-6-treated SKOV3 cells were incubated with siltuximab with a range of concentrations of 0.001,0.01,0.1, 1.0 and 10 μg/ml, there were trends toward reduced pStat3 expression in the treated cell lines.Compared without treatment with siltuximab, the expression of the anti-apoptotic proteins MCL-1, bcl-XL and survivin in SKOV3/TR and CAOV3/TR cell lines were significantly decreased after treated with siltuximab.(3) In resting cells, the majority of pEGFPStat3 was cytoplasmic until the addition of human IL-6, which promptly induced the translocation of fluorescent Stat3 molecules to the nucleus.Exposure of cells to siltuximab with a range of concentrations of 0.001, 0.01,0.1, 1.0 and 10 μg/ml, followed by an incubation in IL-6 significantly reduced pEGFP-Stat3 nucleocytoplasmic translocation.(4) MTT cytotoxicity assay demonstrated that siltuximab increased paclitaxel-induced cell death and partially overcame paclitaxel resistance.Treated with siltuximab ( 1 and 10 μg/ml) ,the paclitaxel IC50 value of siltuximab in SKOV3/TR (0.49, 0.19 μg/ml) and CAOV3/TR (0.0010, 0.0008 μg/ml) cells were significantly lower than those in untreated cells (0.71,0.0021 μg/ml;all P < 0.05).Conclusions These results demonstrated that siltuximab effectively block the IL-6 signaling pathways, which .Blockage of IL-6 signaling may provide benefits for the treatment of ovarian cancer.
7.Correlation Between Fetal Cardiac Function and Interventricular Septal Thickness in Fetuses of Diabetic Mothers
Ping HE ; Yuqi ZHANG ; Yu LU ; Huiying XU ; Xiangli HONG
Chinese Journal of Medical Imaging 2013;(10):771-774,779
Purpose To explore the correlation between fetal cardiac function and interventricular septal thickness in fetuses of gestational diabetes mellitus (GDM) mothers. Materials and Methods Thirty-nine GDM mothers were involved in the study and divided into group MH (fetuses of GDM mothers with interventricular septal hypertrophy) and group NMH (fetuses of GDM mothers with normal interventricular septal thickness). Ultrasonic cardiogram was performed for both groups to assess such variables as interventricular septum thickness at end diastole (IVSd), left ventricular ejection fraction (LVEF), left ventricular fraction shortening (LVFS), right ventricular fraction shortening (RVFS), the ratio of E and A of mitral flow (E/AMV), the ratio of E and A of tricuspid flow (E/ATV), peak velocity of aortic valve (VPAO), peak velocity of pulmonary valve (VPPA) and myocardial performance index (MPI). The results were further compared with those of control group. Results The VPAO, VPPA, LVEF and LVFS in group NMH were significantly higher than those in control group (P<0.05). The VPAO, VPPA, LVEF, LVFS and RVFS in group MH were significantly higher than those in control group whilst the E/AMV and E/ATV significantly lower than those in control group (P<0.05). The LVEF, LVFS and RVFS in group MH were significantly higher than those in group NMH whilst the E/AMV and E/ATV significantly lower (P<0.05). MPI in group MH was significantly higher than that in group NMH (P<0.05), whilst both were significantly higher than that in control group (P<0.05). The LVEF, LVFS, RVFS, VPAO and VPPA were positively correlated with IVSd (r=0.48, 0.51, 0.45, 0.30, 0.30;P<0.05). Conclusion Cardiac function in fetuses of GDM mothers may be associated with interventricular septal thickness.
8.Clinical significance of prenatal ultrasound screening in pregnart women with advanced maternal age
Yuqi KAN ; Yuping FAN ; Xingpu ZHANG ; Rong LIU ; Ning LU ; Yuliang YIN
Chinese Journal of Primary Medicine and Pharmacy 2011;18(22):3051-3053
Objective To investigate the implementation of the system of older pregnant women prenatal ultrasound screening for the diagnosis and clinioal significance.Methods Clinical data from March 2004 to April 2009 a total of 10 630 cases of pregnant women receiving prenatal ultrasound examination of fetal malformation data,of which 712 cases of advanced maternal age( expected date of birth aged≥35 years) to implement the system of prenatal ultrasound screening and follow-up of all maternal age pregnancy outcome,the final post-natal diagnosis of fetal malformations in the standard,both young women screened as a control group for comparison to assess the value of prenatal ultrasound diagnosis.Results 712 cases of advanced maternal age,prenatal ultrasound diagnosis of fetal malformations in 32 cases,abnormalities occur in approximately 4.49%,single abnormal in 15 cases,complex deformity in 17 cases,missed 4 cases of malformation detection rate was 88.88% (36/32).Control group,9918 cases of prenatal ultrasound diagnosis of fetal malformations 243 cases,2.45% incidence of deformity (243/9 918 ).Conclusion Older pregnant women,prenatal ultrasound screening for malformations occur in approximately 4.49%,higher than the detection rate with screening younger women 2.45%,of older pregnant women according to the results of prenatal diagnostic screening could be effective in reducing the birth rate of deformed children and the rate of misdiagnosis.
9.Identification of metabolites of nobiletin in rats using ultra-performance liquid chromatography coupled with triple-quadrupole mass spectrometry.
Lingling XU ; Yuqi HE ; Xin GUO ; Yanhua LU ; Changhong WANG ; Zhengtao WANG
Acta Pharmaceutica Sinica 2011;46(12):1483-7
In this study, metabolism of nobiletin in rats was studied using ultra-performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS). As a result, seven major metabolites were found in bile, urine and serum of rats. Three phase I products were assigned to be demethyl and di-demethyl products, and other four phase II products were assigned to be glucuronic and sulfonic conjugates. The four phase II metabolites were reported for the first time. Among the metabolites found in the present study, the glucuronic conjugates of demethyl-nobiletin played a predominant role in the metabolic pathway, indicating that its potential role for glucuronidation-related factors, such as gene polymorphism, drug-drug interaction, etc., in changing the active and toxic effect of nobiletin and that it should be paid more attention in further development.
10.Association between platelet/lymphocyte ratio and frequent peritoneal dialysis-associated peritonitis in peritoneal dialysis patients
Jing YUAN ; Yuqi YANG ; Lu LIU ; Fangfang YU ; Shuwen QIE ; Li YANG ; Yan ZHA
Chinese Journal of Nephrology 2021;37(4):327-332
Objective:To explore the association between platelet/lymphocyte ratio (PLR) and frequent peritoneal dialysis (PD) - associated peritonitis (PDAP) in PD patients.Methods:The data of PD patients with PDAP from Guizhou Provincial People's Hospital between January 2015 and June 2019 were analyzed retrospectively. The patients were divided into mono group (only once PDAP occurred in one year) and frequent group (2 or more PDAP occurred in one year) according to the frequency of PDAP. The demographic data including gender, age, height and weight, the clinical data including blood pressure, duration of PD, causes of peritonitis, the laboratory data at the first time of PDAP and the prognosis of PDAP were compared between two groups. Logistic regression analysis method was applied to analyze the relationship between PLR and frequent PDAP. The predictive power of PLR was evaluated by receiver operating characteristic curve (ROC).Results:A total of 78 PD patients with PDAP were enrolled, including 53 males and 25 females, with average age of 45.2 years. The total person-year was 765.1 person-years and the incidence of peritonitis was 0.10 case/person-year during the median follow-up of 16 months. All patients were divided into two groups: 53 patients in mono group and 25 patients in frequent group. Compared with mono group, the patients in frequent group had lower body mass index, longer dialysis duration, higher systolic blood pressure level, higher PLR level, lower uric acid level, and higher rate of drug-resistant bacteria in peritoneal effusion (all P<0.05). The extubation rate of the frequent group was 44.0%(11/25), which was significantly higher than that [15.1%(8/53)] of mono group ( P<0.05). Multivariate logistic regression analysis showed that higher PLR level was an independent related factor for frequent PDAP( OR=1.006, 95% CI 1.002-1.010, P=0.003), and the area under the ROC curve of PLR was 0.783(95% CI 0.663-0.904, P<0.001). Conclusions:High PLR level is an independent related factor of frequent PDAP for PD patients, and PLR can be a potential predictor of frequent PDAP.